UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km |
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1 observation found in db: euraster
Available (probably) matching predictions (click on the link to switch):
Q: model quality flag (0-5, 5=highest) | P: rotation period | λ,β: ecl. lon. and lat. of spin axis (J2000) | JD: initial time (epoch) | φ0: initial rotation angle for JD0
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Map with groundtrack and observer stations
Event Details
Occultation UUID [and DB] : 55996171-e71d-4932-af22-8006c4d23fd0 [observed]
Occultation Date + Time : 2022-01-19 at 20:43:24 UT +/- 0.01 min [1]
Object Designation : (925) Alphonsina
Orbit Class : MBA
Star Designation : GDR3 0871414470260310016
Star Coordinates (ICRF) : RA = 07 19 12.4006, DE = +26 47 36.152 [2]
Star Magnitudes : G = 11.92 mag, RP = 10.79 mag, BP = 13.28 mag
Object Magnitude : V = 11.88 mag
Estimated Magnitude Drop : 0.7 mag
Estimated Max. Duration : 4.0 sec
Object Mean Diameter : 54 km (src: astorb)
Speed of the shadow : 13.7 km/s
Elongation to Moon & Sun : 33° (sunlit = 97%), Sun = 167°
Cross-track uncertainty : 4.3 mas = 4 km = 0.09 path-width (1-sig)
RUWE and duplicate source : 1.23 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#118
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
